Installation and Operation Manual
Due to the dynamic nature of product design, the information contained in this
document is subject to change without notice. Broadcast Tools, Inc., assumes no
responsibility for errors and/or omissions contained in this document. Revisions
of this information or new editions may be issued to incorporate such changes.
Broadcast Tools® is a registered trademark of Broadcast Tools, Inc.
tiny TOOLS™ is a trademark of Broadcast Tools, Inc.
All Sentinel™ labeled products are a trademark of Broadcast Tools, Inc.
Copyright ® 1989 - 2017 by Broadcast Tools, Inc. All rights reserved.
No part of this document may be reproduced or distributed without permission.
Visit www.broadcasttools.com for important product update information.
Firmware Version 1.16
Manual Update: 10/18/17
SS 4x4
Stereo Audio Matrix Switcher
INC
®
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SS 4x4 Installation and Operation Manual
Table of Contents
Section Title Page #
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Who to Contact for Help . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Function Guidelines
Front Panel Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Rear Panel Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Front Panel Switch operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Front Panel LED indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Front Panel Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Rear Panel Audio Inputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Rear Panel Audio Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Silence Sensor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
PIP (Trigger) Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Open Collector Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Relay Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Serial Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
User Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Installation Guidelines
Setting “OPTION” Dipswitches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Power-Up Feature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Mounting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Power Supply Connection
Connecting audio and remote control and/or trigger devices . . . . . . . . . . 9
Relay Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Adjusting Input and Output Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Input channel expansion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Connecting RS-232. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Connecting two unit to one serial port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Operation Guidelines
Front Panel LED operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Front Panel switch operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Serial Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Serial Burst Mode Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Set-up Commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Component Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Appendix
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CONTENTS
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SS 4x4 Installation and Operation Manual
INTRODUCTION
INTRODUCTION
Thank you for your purchase of a Broadcast Tools® SS 4.4 Four Input, Four Output
Stereo Audio Matrix Switcher (referred to as the SS 4.4 throughout this manual).
We’re confident that this product will give you many years of dependable service.
This manual is intended to give you all the information needed to install and oper-
ate the Broadcast Tools® SS 4.4.
SAFETY INFORMATION
Only qualified personnel should install Broadcast Tools® products. Incorrect or
inappropriate use and/or installation could result in a hazardous condition.
Broadcast Tools, Inc., is unable to support NON-Broadcast Tools software, hardware or
NON-Broadcast Tools computer/hardware/software problems. If you experience these
problems, please research your hardware/software instruction manuals or contact the man-
ufacturers technical support department.
WHO TO CONTACT FOR HELP
If you have any questions regarding your product or you need assistance, please con-
tact your distributor from whom you purchased this equipment.
If you would like more information about Broadcast Tools® products, you may
reach us at:
Broadcast Tools, Inc.
131 State Street
Sedro-Woolley, WA 98284-1540 USA
Voice: 360.854.9559
Fax: 866.783.1742
Internet Home Page: www.broadcasttools.com
E-mail: [email protected]
THANK YOU FOR CHOOSING
BROADCAST TOOLS® BRAND PRODUCTS!
CAUTION!
Broadcast Tools®
Products, as with any
electronic device, can
fail without warning.
Do not use this product
in applications where a
life threatening condition
could result due to failure.
NOTE:
This manual should be
read thoroughly before
installation and operation.
WEBSITE:
Visit our web site for
product updates and
additional information.
Designed, Assembled and Tested in Washington State, USA.
Broadcast Tools is a Veteran Owned Small Business
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SS 4x4 Installation and Operation Manual
DESCRIPTION
Product Description
The Broadcast Tools® SS 4.4 provides matrix audio switching of 4 stereo inputs to
4 stereo outputs. Matrix switching allows any/or all inputs to be assigned to any/or
all outputs. The SS 4.4 may be controlled via front panel switches, contact closures,
open collectors, logic and/or the multi-drop RS-232 serial port (USB or Ethernet
optional). Installation is simplified with plug-in euroblock screw terminals.
Features
• Separate input selection pushbuttons are provided for each output channel.
• Three switching modes; Interlock, overlap and mix.
• Internal silence sensor monitors output one and is equipped with a front panel
LED indicator; SPDT alarm relay and adjustable SS alarm delay and restore tim-
ing duration.
• Stereo LED VU meters with front panel output selection switch.
• Stereo headphone amplifier with front panel output selection switch, headphone
jack and level control.
• Stereo powered monitor output with front panel output selection switch and level
control.
• Power-up selection of inputs to outputs, mute or last source selected.
• Most configuration options via rear panel dipswitches.
• 16 input “PIP” (GPI / Triggers) port (or remote control) with front panel LED
indicator.
• Four open collector status outputs or programmable via burst commands.
• Four SPDT relays with selectable multiplex function on inputs assigned to out-
put two.
• Multi-turn input and output level controls.
• Electronically balanced stereo inputs and outputs with low noise and distortion
circuitry.
• Multi-drop RS-232 serial port (USB and/or Ethernet optional) with power and
data activity LED.
• Multiple units may be cascaded to expand inputs.
• Plug-in euroblock screw terminals for ALL audio I/O and remote control con-
nections.
• 1-RU aluminum enclosure.
• Universal switching power supply.
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SS 4x4 Installation and Operation Manual
DESCRIPTION
Function Description
Front Panel
The SS 4.4 is a 1-rack unit device (19”w x 1.75”h x 6.0”d). The front panel supports
19 selection switches, 24 LED indicators, headphone, powered monitor and LED
VU meter selection switch, ¼” T/R/S jack and level controls.
Rear Panel
Installation is simplified with plug-in euroblock screw terminals. The rear panel
hosts the connectors, input/output level trimmers, “OPTIONS” Dip-switch, multi-
drop RS-232 modular connector and 5-pin DIN universal power supply connector.
Switches
The front panel of the SS 4.4 contains separate input selection pushbuttons for each
of the four output channels.
A mute switch is provided to turn off each audio channel, while the macro switch
allows the user to program or select up to 16 macros.
A front panel monitor selection switch, level controls and led indicators are fur-
nished for powered monitors, LED VU meters and headphone monitoring of the four
output channels.
The input channels may be programmed for the following operations:
• Overlap - Overlap one audio source with another while the button for the sec-
ond source is held down. Both channels will be fed to the output until the sec-
ond button is released, at which time the first audio source will be switched off.
• Mix - May connect more than one input at a time to any given output - Push
once to connect input, then hold the MUTE switch and press the selected input
again to disconnect.
• Interlock - Connecting one input to any output disconnects all other inputs from
that output
LED Indicators
The SS 4.4’s front panel LED indicators provide operational display of the follow-
ing information:
• Led indicators on each input channel switch.
• Four “MON” led’s displaying which output channel is currently being moni-
tored.
• The “MACRO” led indicator will flicker when activated.
• The “MUTE” indicator is lit when all channels are off.
• The “ACT” led indicating audio activity for output channel one. Trip level set
at –25db.
• One “SS” led indicating when output ONE has a silence sensor alarm.
• “PIP” (Triggers) active. Flickers, indicating any change with any of the 16 trig-
ger inputs.
• “PWR” led which indicates valid power and will flash when the serial RS-232
port is receiving or transmitting data.
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SS 4x4 Installation and Operation Manual
DESCRIPTION
Controls
Front panel powered monitor level control.
Front panel headphone level control.
Audio Inputs
Each of the four stereo inputs are balanced bridging (20KΩ) at a nominal line level
of +4dBu. Ample system gain is provided to accommodate most unbalanced con-
sumer level products. Multi-turn level trimmers are provided for each channel.
Audio Outputs
The SS 4.4 provides four balanced low impedance stereo outputs. The outputs may
be adjusted with the multi-turn trimmers.
Silence Sensor
The SS 4.4 contains a silence sensor for stereo output one. A detector monitors the
sum of stereo output one. The factory default delay is set at 10 seconds, with a
threshold of -25 dB, while the restore time is set at two seconds. Upon silence delay
detection, the “SS” led will illuminate and the SPDT SS relay will close for the dura-
tion of the silence. The sensor may be programmed for:
• Number of seconds of silence that must be present before an alarm state is
reached or terminated.
• Number of seconds that valid audio must be present before an alarm state is
cleared.
PIP (Trigger) Inputs
The 16 input “PIP” (GPI/Triggers) are used to monitor closures and pass that infor-
mation back to the control computer. Response time is set for 50ms, but may be con-
figured from 40ms to 2.54 seconds. The inputs are pulled high (5 volts through a
20KΩ resistor) and activated by forcing the input to ground. These inputs supply
status to any serial polling device (when the unit ID is set to 0 (ZERO), no polling
of inputs is required).
“Open Collector” Status Outputs, 4 Port Output Control
The SS 4.4 provides four open collector status outputs. The status outputs may be
configured to operate in one of three modes:
The status outputs follow the associated channel.
The status outputs a one-second pulse when the associated channel is selected.
Software control
Relay Outputs, 4 Port Output Control
The SS 4.4 contains four SPDT relays. Each relay may be latched on, latched off or
momentarily turned on by an attached control computer. The “pulse” time may be
set from 100 msec to 9.9 seconds. The default pulse length is one-second. The
relays may be set for “MPX” mode. In the “MPX” multiplex mode, the relay fol-
lows the associated input channel assigned to output two.
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SS 4x4 Installation and Operation Manual
INSTALLATION
Serial Communication
The SS 4.4’s serial communication is supplied with a multi-drop RS-232 port, allow-
ing up to four SS 4.4’s on the same computers serial port. Commands may be
entered either via a menu (menu mode) or a short form code (ASCII serial string-
burst mode).
All commands and responses use normal ASCII characters, facilitating scripting. A
burst mode command starts with an asterisk (*) followed by the device (ID) address
as a single decimal digit, then the command. The command to enter menu mode is:
*0MM. The menu mode displays certain parameters, and allows for the control
and/or configuration of most switcher functions.
User Programming
The SS 4.4 programming is stored in non-volatile memory. Configuration is set with
selection dipswitches and computer commands.
Inspection
Please examine your SS 4.4 carefully for any damage that may have been sustained
during shipping. If any is noted, please notify the shipper immediately and retain
the packaging for inspection by the shipper.
The package contains the SS 4.4, universal input, multi-voltage DC switching power
supply, Installation manual or CD and a reversed modular serial cable with the “S9”
9-pin D-Sub adapter (manuals are also downloadable from our web site).
Installation Guidelines
Setting “OPTION” Dipswitches
The SS 4.4 is equipped with an 8-position “OPTIONS” dipswitch. The dipswitch
specifies 2-bit unit ID, baud, audio modes (mix, interlock, overlap), and other features
listed below. Access to this switch is on the rear panel. Follow the description below.
CAUTION! The DIPswitches are read from RIGHT to LEFT (SW 8 on the left and
SW 1 on the right). You will also need to use small needle-nose pliers to turn the
switches ON. In later versions of the PCB assembly, this will be corrected.
“OPTIONS” Dipswitch Functions
Switch Default
Number Setting Function
1 OFF Binary address 1 (Default ID = 0)
2 OFF Binary address 2
3 OFF Baud rate (Default) OFF = 9600 / ON = 38400)
4 OFF Stereo Audio Switching (Default = Overlap)
5 OFF Stereo Audio Switching (Default = Overlap)
6 OFF Open Collector and Relay configuration
7 OFF Power up modes (Default = Last source selected)
8 OFF Remote Control (Default) / “PIP” (Triggers)
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SS 4x4 Installation and Operation Manual
INSTALLATION
Address (Unit ID) DIP Switches
Switch-1 Switch-2 Mode
OFF OFF ID = 0
ON OFF ID = 1
OFF ON ID = 2
ON ON ID = 3
Baud Rate DIP Switch
Switch 3 Mode
OFF 9600
ON 38400
Audio Switch Mode DIP Switches
Switch 4 Switch 5 Mode
OFF OFF Overlap
ON OFF Interlock
OFF ON Interlock
ON ON MIX
Open Collector/Relay Mode DIP Switch
Switch 6 Function
OFF Burst mode control.
ON Follow / MUX mode.
Power-up Mode DIP Switch
Switch 7 Function
OFF Last Source Selected
ON Use the “Burst” mode serial command *0CPS to store the current
selected input/output configuration.
Remote / “PIP” (Triggers) Mode DIP Switch
Switch 8 Function
OFF Remote Control
ON “PIP”/Triggers enabled
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SS 4x4 Installation and Operation Manual
INSTALLATION
Mounting
The SS 4.4 is designed to be rack mounted in a standard 19” rack. It should be
mounted in an area that is accessible from the rear and preferably away from sources
of heat. We recommend before permanently installing the SS 4.4, you bench test and
become familiar with the operation of the unit.
Power Supply Connection
Insert the universal AC input, multi-voltage DC switching power supply’s 5-pin DIN
connector into the power receptacle on the rear panel of the SS 4.4. When ready,
plug the power supply into the appropriate AC receptacle.
CAUTION! Only use the power supply provided with this product.
Connecting the audio inputs, outputs and remote control devices
It is recommended that all cables connected to the SS 4.4 be looped through ferrite
cores to suppress RF. Surge protection with RF filtering such as the Tripp Lite “ISO-
BAR 4” is also suggested for the power transformer. The purchase of an inexpensive
uninterruptible power supply (UPS) will provide back up AC in case of power out-
ages. Check out our web site for lightning protection links.
Connecting the audio Inputs and Outputs
The input channels are numbered from 1 through 4 on the rear panel from left to
right. The SS 4.4 interfaces to your audio equipment through plug-in euroblock
screw terminals. Follow the legends for the desired audio input and output connec-
tions, which appear on the rear of the unit. Before installing a wire, remove the plug-
in euroblock screw terminal and turn each capture screw fully counterclockwise.
Strip each conductor to a length of 0.25” and insert the conductor fully into the ter-
minal. Turn the capture screw fully clockwise to secure the conductor. The termi-
nals accommodate wire sizes from 16 - 28 AWG solid or stranded wire.
Connections may be made to the + and - inputs for balanced operation, or to the +
input and grounding the - side for unbalanced input operation. The input impedance
is 22KΩ, 600Ω terminations may be installed on the connector if required.
Connections can be made to the + and - outputs for balanced operation, or to the +
output and ground for unbalanced output operation.
CAUTION! In no case should either the + or - OUTPUTS be connected to
ground.
CAUTION!
Installation of the SS
4.4 in high RF environ-
ments should be per-
formed with care.
Shielded cable is sug-
gested for all control,
audio inputs and out-
puts. All shields should
be tied to the “GND”
terminal on each chan-
nel. The station ground
should be connected to
the chassis ground
screw (GND) located on
each side of the chassis
as viewed from the rear.
For lightning protection
devices, check out
www.polyphaser.com
and www.itwlinx.com.
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SS 4x4 Installation and Operation Manual
INSTALLATION
Connecting the remote control, PIP / Trigger Inputs and OC/Relays
Most front panel functions of the SS 4.4 may be remote controlled via the pluggable
euroblock screw terminals located on the rear panel. The SS 4.4 accepts momentary
contact closures; open collector or TTL/CMOS input logic levels. Open collectors
and relay connections are provided on the lower rear panel 18 position connector
TB-6. Each relay and/or open collector and mute input is labeled. Connections to
the remote control and/or PIP (trigger) inputs are made on the top of the 18-position
connector TB-6. The following information is a comparison chart to be used when
connecting external devices.
Pin Function (DIPSw 8 = OFF). Function (DIPSw 8 = ON)
1 IN 1 to OP 1 PIP 1
2 IN 2 to OP 1 PIP 2
3 IN 3 to OP 1 PIP 3
4 IN 4 to OP 1 PIP 4
5 IN 1 to OP 2 PIP 5
6 IN 2 to OP 2 PIP 6
7 IN 3 to OP 2 PIP 7
8 IN 4 to OP 2 PIP 8
9 IN 1 to OP 3 PIP 9
10 IN 2 to OP 3 PIP 10
11 IN 3 to OP 3 PIP 11
12 IN 4 to OP 3 PIP 12
13 IN 1 to OP 4 PIP 13
14 IN 2 to OP 4 PIP 14
15 IN 3 to OP 4 PIP 15
16 IN 4 to OP 4 PIP 16
17 Macro N/A
18 Ground Ground
Relay Control
Four SPDT relays may be controlled by software. Each relay may be commanded to:
Latch On Turns on and stays on (through power failures) until turned off.
Latch Off Turns off and stays off (through power failures) until turned on.
Pulse On Overrides latch; turns on for (default) second, then latches off.
Multiplex (See dipswitch 6)
In the (“MPX”) multiplex mode, each relay follows the associated
input channel assigned to output two.
!
TIP
Helpful tips area.
CAUTION!
Broadcast Tools
products, as any elec-
tronic device, can fail
...
NOTE:
For safety, DO NOT
connect ...
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SS 4x4 Installation and Operation Manual
INSTALLATION
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Adjusting Input and Output Levels
Once the input and output connections have been made, the input levels can be set.
The switcher is factory set for unity, but has about 10 dB of system gain.
Recommended input levels would be in the range of -6 dBu to +10 dBu. Should
input levels need to be changed, they are accessible from the rear panel. Each stereo
input and output is labeled and have two trimmers per stereo channel.
Input Channel Expansion
Input expansion may be accomplished by connecting a shielded cable between the
first units EXT 1+ input terminal and the second units unbalanced output. The
shield should be connected to the ground terminal. Follow the same procedure for
the EXT +1 right channel. The above example provides 8 inputs, with the first
switcher providing the main output.
Connecting the RS-232 Serial Port
The multi-drop RS-232 transceiver always switches between transmit and receive
mode, unless the unit ID is zero. In that case, the unit will always leave the RS-232
transceiver enabled. Use the provided modular (S9) 9-pin D-sub connector adapter
and reversed modular cord to connect the SS 4.4’s serial connector to your serial port.
Modular Jack Pin Numbers
The pin out of the adapter is shown below
The SS 4.4 is supplied with a X-over modular cable and a (S9) 9-pin female D-sub
modular adapter for serial control. Only use the modular cord that is supplied with
the SS 4.4 or a replacement that reverses (X-over), such as Radio Shack Cat No.
279-0347. Connect the cable between the SS 4.4 and your computers COM port or
USB adapter cable (optional). The SS 4.4 may be serially controlled at baud rates
of 9600 or 38400 baud. The unit is shipped set for 9600 baud, with 8 data bits, no
parity and one stop bit. Load Windows “HyperTerminal” using the protocol of
9600-N-8-1. Set the mode to: DIRECT, Flow Control to: NONE and emulation to:
ANSI. HyperTerminal set up instructions are available on our web site under
“Downloads”.
RJ-11
Adapter
Pin
DB-9
D-Sub
SS 8.2
(Point of view)
4 3 RS-232 Receive
3 2 RS-232 Transmit
2 5 Ground
Modular Jack
Pin Numbers
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SS 4x4 Installation and Operation Manual
INSTALLATION
Connecting Two SS 4.4’s To A Single Computers Serial Port
Multiple SS 4.4’s may be cascaded serially to operate from the same serial port. The
first step is to assign unit ID’s to each SS 4.4. One suggestion is to assign unit ID 1
to the first SS 4.4 and unit ID 2 to the second switcher. The second step is to paral-
lel the serial ports of the SS 4.4’s. Plug the male end of the duplex modular adapter
into the supplied female (S9) DB-9 to RJ-11 adapter, then attach the supplied mod-
ular line cords into each of the duplex modular adapter receptacles (Radio Shack Cat
No. 279-0357) and the other ends into each SS 4.4 modular receptacles. See the dia-
gram below. NOTE: Three or more SS 4.4’s may be daisy chained by using the
above description and a Radio Shack Cat No. 279-0410, 5-jack modular adapter.
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To SS 4.4 #1
To SS 4.4 #2
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SS 4x4 Installation and Operation Manual
OPERATION
Operation Guidelines
Front Panel LED’s
Number
Front Panel LED’s Of LED’s Activation Event/Mode Activation Behavior
Input connected
to “OP 1” 4Green State of connection ON if connected
Input connected
to “OP 2” 4 Green State of connection ON if connected
Input connected
to “OP 3” 4 Green State of connection ON if connected
Input connected
to “OP 4” 4 Green State of connection ON if connected
“MUTE” 1 Green ALL inputs are OFF ON
“MACRO” 1 Green Used to set or playback Flickers when active
a macro
“ACT” 1 Green Valid audio on output ON if audio for
Audio activity on ONE only. output ONE is above
output ONE only. –25dB.
“SS”, Silence Alarm 1 Red Duration of silence In an alarm condition
on output ONE only. when ON.
“PIP” (Triggers) 1 Yellow Any valid “PIP” / Flickers when active.
input activated. Trigger input, when enabled.
“PWR” Status 1 Green Valid power and/or ON, but flickers with
serial data. serial data activity.
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SS 4x4 Installation and Operation Manual
OPERATION
SS 4.4 Front Panel switch operation
Action Result
Push the desired Input switch in the “OP-1” area. The selected input is connected to out-
put 1. To mute the active channel,
simultaneously hold down the mute
switch and the desired input channel.
Push the desired Input switch in the “OP-2” area. The selected input is connected to out-
put 2. To mute the active channel,
simultaneously hold down the mute
switch and the desired input channel.
Push the desired Input switch in the “OP-3” area. The selected input is connected to out-
put 3. To mute the active channel,
simultaneously hold down the mute
switch and the desired input channel.
Push the desired Input switch in the “OP-4” area. The selected input is connected to out-
put 4. To mute the active channel,
simultaneously hold down the mute
switch and the desired input channel.
Switches Function
Input channels 1 through 4 for each four-outputs. Selects Input channel’s one through
four.
“MUTE” Mutes any of the four outputs.
“MACRO” To record a macro: Set up the desired
input/output configuration, then hold
down the macro & mute switches (the
macro led will flash), next press one
of the 16 input switches.
To play back: Hold the macro switch
(the macro led will flash until
released) and then select one of the 16
desired macro input switches.
“MON” Used to select which of the four out-
puts are monitored.
Serial Control
The unit is controlled in either Menu or Burst mode. It can run at the following data
rates: 9600 Default or 38.4K baud. The SS 4.4’s serial communication is supplied
with a multi-drop RS-232 port, allowing a maximum of four SS 4.4’s on a single
PC’s COM port. Commands may be entered either via a menu (menu mode) or a
short form code (ASCII serial string-burst mode). All commands and responses use
normal ASCII characters, facilitating scripting. A burst mode command starts with
an asterisk (*) followed by the device (ID) address as a single decimal digit, then the
command.
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SS 4x4 Installation and Operation Manual
OPERATION
The command to enter menu mode is: *0MM. The menu mode displays certain
parameters, and allows for the control and/or configuration of most switcher func-
tions.
Serial Burst Mode Commands
Burst mode allows a computer or ASCII terminal to control and interrogate the unit.
This section defines all burst mode commands. Each burst mode commands starts
with an asterisk (*). Next is a single decimal digit that corresponds to the unit (ID)
address 0-3. Following that are one or more ASCII characters specifying the com-
mand. No carriage-return or line-feed is required to terminate the command except
for those few commands of variable length, if the maximum length is not sent. If
the command requested a response, the response will consist of an upper case “S”,
followed by the unit address, and then the specific response. If acknowledgements
are enabled, successful commands are responded to with “RRR” while errors get an
“EEE” response. The syntax of each command is given below. The syntax shows
the command exactly as it should be sent, except that lower case characters repre-
sent values that should be substituted:
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SS 4x4 Installation and Operation Manual
OPERATION
Glossary Of Command Notation
Character String Meaning Allowable Values
u Unit ID 0-3
ii Input Number 01-04
o Output Number 1-4
r Output Relay 1-4
o Open Collector 1-4
Set-up Commands
*uMM - Open up Menu
*uCEx - Enable Error and Good Responses - Where x = Y to enable and N = disable.
In this mode, when a command is sent that is in error, the unit will reply (possibly
before receiving the entire command) with “EEE.” If the command is sent correct-
ly, the unit will reply with “RRR.”
*uCDEF - Set factory defaults
*uCIIttt - Set “PIP” Programmable Pulse Stretcher Input Duration = ttt: 000 –> 255
hundredths of seconds (255 = 2.55 Seconds)
*uCLx - Lock Front Panel if x is “L”. Unlock Front Panel if x is “U”
*uCPR- Power up audio state: Restore audio from power up state
*uCPS - Power up audio state: Save power up state
*uCRtt- Set Relay Momentary Pulse Length – tt: 00-99 for 00 –> 9.9 Seconds
Set-up Commands
*uCSAtttt - Set silence sensor time delay to tttt seconds (0002 – 9999), 0000 = OFF
*uCSBtttt - Set silence sensor restore delay to tttt seconds (0002 – 9999), 0000 =
OFF
Relay and Open Collector Commands
*uORrF - Unlatch output relay “r”
*uORrL - Latch output relay “r”
*uORrP - Pulse output relay “r”
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SS 4x4 Installation and Operation Manual
OPERATION
Relay and Open Collector Commands
*uOOoF - Unlatch open collector “o” (Only works in NON-Remote mode
*uOOoL - Latch open collector “o” (Only works in NON-Remote mode
*uOOoP - Pulse open collector “o” (Only works in NON-Remote mode
Audio Switch Control Commands
*uiio - Apply input “ii” to output “o”
*uiiA - Apply input “ii” to ALL outputs
*uiiEott - Start overlap - Apply input ii to output o. After tt tenths of a second,
remove all other inputs from output o.
NOTE: Only one at a time can be pending per output. Max time 9.9 seconds
*uE - End overlap if in overlap mode. This applies to all outputs that have changed
since the last “end overlap” command was issued.
*uiiMA - Mute input “ii” for all outputs
*uiiMo - Mute input “ii” for output “o”
*uMo - Mute output “o”
*uMA - Mute all outputs
Audio Switch Control Commands
*uB,a,a,a,a Set all status ignoring mode: Lower 4 bits of A is channel #’s OR’d
together + 1, upper 4 bits is 41. NOTE: Input commands MUST be in CAPS.
A = all off
B = 1
C = 2
D = 1 + 2
E = 3
F = 3 + 1
G = 3 + 2
H = 3 + 2 + 1
I = 4 etc
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SS 4x4 Installation and Operation Manual
OPERATION
Special MIX mode commands (the switcher doesn’t need to be in MIX mode).
*uiiO1 For input ii, set output 1 on without affecting any other
*uiiO2 For input ii, set output 2 on without affecting any other
*uiiO3 For input ii, set output 3 on without affecting any other
*uiiO4 For input ii, set output 4 on without affecting any other
*uiiO5 For input ii, set output 1 off without affecting any other
*uiiO6 For input ii, set output 2 off without affecting any other
*uiiO7 For input ii, set output 3 off without affecting any other
*uiiO8 For input ii, set output 4 off without affecting any other
Information Retrieval Commands
*POLL - Respond with unit (ID) address in appropriate time slot. If there are multi-
ple units on the line, each will respond with a different delay after receipt of this
command.
*uSL - Send Audio Status: SuLo,x,x,x,x<CR><LF>. “u” is unit ID, “o” is output,
and “x” is “1”for connected; “0” for not connected for each respective input.
*uSPii - Send single input (GPI) PIP status. Response is “SuP,ii,x” where “x” is 0
if the corresponding input is high, 1 if low.
*uSPA - Send ALL input (GPI) PIP status. Response is:
“SuP,A,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x,x<CR><LF > where input 0 is first and input 15
is last. “x” is 0 if the corresponding input is high, 1 if low.
*uSO - Send status of all Open Collectors. Response is: SuO,x,x,x,x<CR><LF> (0
= OFF).
*uSR - Send status of all relays. Response is: SuR,x,x,x,x<CR><LF> (0 = OFF).
*uSS - Send status of silence sensor: SuS,a<CR><LF> a = 0 (not silent), 1 = silent
Information Retrieval Commands
*uU - Send Unit Information:<name)><version (><cr><lf Example: SS4.4 V:1.7
*uY - Display configuration
Real Time Control Commands
*uDxx - Delay xx seconds before processing next command.
*uDLxxx - Delay xxx seconds before processing next command.
*uZx - Echo character “x” to serial control port. This is useful in debugging com-
mand strings.
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SS 4x4 Installation and Operation Manual
SPECIFICATIONS
Specifications * Audio Precision Test Equipment
Input Levels: Max + 27 dBu, balanced, bridging. 20k Ω.
Output Levels: Four stereo balanced outputs, +24 dBm. @ 600 Ω.
/ +27dbu @ 10KΩ.
Powered monitor unbalanced output, 0 dBm. @
600 Ω. / +4dbu @ 10KΩ.
Headphone output, 4.7 Ω. 100mw.
System Gain: 10 dB max.
Frequency Response: * 20 to 20 kHz; +/- .0.25dB
Signal/Noise Ratio: * >85 dB nominal, weighted 20 to 22Khz, @ +27dBu.
Distortion: * Less than 0.01% THD @ +27dBu
IMD (250/7kHz): * Less than 0.01% IMD @ +27 dBu.
Crosstalk: * -80 dB @ 1khz / -55 dB @ 10 kHz from adjacent off
channel.
Input expansion port: Unbalanced summing inputs @ 10k Ω, 0 dBu.
Switching Method: Digitally controlled professional level analog switch
arrays.
Logic: Flash microprocessor / Non-volatile memory.
Operation Control: Front Panel - Momentary switches.
Remote/”PIP”(Triggers) - Momentary (40ms to 2.54
seconds response time, compatible with
CMOS/TTL logic, open collector or contact closures
to ground.
Serial - Multi-drop RS-232, 9600 or 38.4K, 8,N, 1.
Status/Control: Front Panel - LED indicators.
Control - 4 - SPDT Relays / Silence Sensor - 1 -
SPDT
Remote - 4 - Open collector outputs (6vdc @
100ma).
RS-232 - Multi-drop RS-232, 9600 or 38.4K, 8,N,1.
Interfacing: Audio & Remote Control - Plug-in euroblock screw
terminals. Accommodates 16 – 28 AWG wire.
Mating connectors supplied.
RS-232 Serial - RJ-11/6P4C reversed modular
cable & “S9” female 9-pin D-Sub adapter supplied.
USB-RS-232 Adapter cable and/or ESS-1 Ethernet
to serial interface. Optional.
Power: Universal AC (100-240 VAC, 46-63 Hz w/IEC) input,
multi-voltage (+5vdc / +/-15vdc) DC switching power
supply. CE. (supplied with domestic IEC AC cord).
Mechanical: 19” x 1.75” x 6.0” (WHD)
Weight: 5 lbs, (unit and accessories).
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SS 4x4 Installation and Operation Manual
LIMITED WARRANTY
LIMITED WARRANTY
The term “Buyer” as used in this document refers to and includes both (but only) (a) any person or entity who acquires such an item for
the purpose of resale to others (i.e., a dealer or distributor of an item), and (b) the first person or entity who acquires such an item for
such person’s or entity’s own use.
Broadcast Tools warrants to each Buyer of any item manufactured by Broadcast Tools that the item will be free from defects in materi-
als and workmanship at the time it is shipped by Broadcast Tools if the item is properly installed, used and maintained.
EXCLUSIVE REMEDIES
If Broadcast Tools is notified, in writing, of a failure of any item manufactured by Broadcast Tools to conform to the foregoing Limited
Warranty within one (1) year following the date of the Buyer’s acquisition of the item, and if the item is returned to Broadcast Tools in
accordance with Broadcast Tools’ instructions for confirmation by inspection of the defect (which at Broadcast Tools’ election may
include, without limitation, a requirement that the Buyer first obtain a Return Authorization number from Broadcast Tools, that the Buyer
furnish proof of purchase in the form of an invoice and/or receipt, and that the Buyer prepay all freight charges associated with any return
of the item to Broadcast Tools using such freight service as Broadcast Tools reasonably may specify), Broadcast Tools will repair or
replace the defective item, or will refund the purchase price paid by the Buyer for the item. Broadcast Tools shall have the exclusive
right to choose between these alternative remedies.
NO OTHER WARRANTIES OR REMEDIES
TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, BROADCAST TOOLS AND ITS SUPPLIERS DISCLAIM ALL OTHER
WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO IMPLIED WARRANTIES OF MERCHANTABIL-
ITY OR FITNESS FOR A PARTICULAR PURPOSE; AND THE FOREGOING ALTERNATIVE REMEDIES SHALL BE EXCLUSIVE OF
ALL OTHER REMEDIES. THIS LIMITED WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS. YOU MAY HAVE OTHER RIGHTS,
WHICH VARY FROM STATE/JURISDICTION TO STATE/JURISDICTION.
NO LIABILITY FOR CONSEQUENTIAL DAMAGES
TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, NEITHER BROADCAST TOOLS NOR ANY OF ITS SUPPLIERS
SHALL HAVE ANY LIABILITY FOR ANY SPECIAL, INCIDENTAL, INDIRECT, CONSEQUENTIAL OR PUNITIVE DAMAGES WHATSO-
EVER (INCLUDING, WITHOUT LIMITATION, ANY DAMAGES FOR LOST PROFITS, BUSINESS INTERRUPTION, LOSS OF DATA OR
INFORMATION, COST OF CAPITAL, CLAIMS OF CUSTOMERS, OR ANY OTHER PECUNIARY LOSS) ARISING OUT OF THE USE
OF OR THE INABILITY TO USE ANY ITEM SUPPLIED BY BROADCAST TOOLS, EVEN IF BROADCAST TOOLS HAS BEEN
ADVISED OF THE POSSIBILITY OF SUCH DAMAGES HAVE ANY LIABILITY FOR ANY SPECIAL, INCIDENTAL, CONSEQUENTIAL,
EXEMPLARY OR PUNITIVE DAMAGES. THIS LIMITATION OF LIABILITY APPLIES WHETHER A CLAIM IS ONE ALLEGING
BREACH OF A CONTRACT OR WARRANTY, NEGLIGENCE OR OTHER TORT, FOR THE VIOLATION OF ANY STATUTORY DUTY,
THE FAILURE OF ANY LIMITED OR EXCLUSIVE REMEDY TO ACHIEVE ITS ESSENTIAL PURPOSE, OR ANY OTHER CLAIM OF
ANY NATURE. BECAUSE SOME STATES AND JURISDICTIONS DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY
FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES, THIS LIMITATION MAY NOT APPLY TO YOU.
Broadcast Tools, Inc.
131 State Street
Sedro-Woolley, WA 98284 • USA
360.854.9559
voice • 866.783.1742 fax
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Broadcast Tools SS 4x4 Stereo Audio Matrix Switcher INC Owner's manual
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